I think your issue is that you don’t know what the page link field does..
It will ONLY return the link (url) to the selected post.
What you really want is a post object field..
Then to get the link you’d do
$post_object = get_field('thepostobjectfield');
$page_link = get_permalink(post_object->ID);
$page_title = get_the_title($post_object->ID);